Tuesday's Good Morning America announced that the Dallas heartthrob will hit the dance floor on March 18 alongside returning pro, Peta Murgatroyd, when the show returns for its16th season.

"Hopefully, I won't make a fool of myself on the dance floor," Lowe said.

With Lowe joins the cast of Dancing with the Stars, the reality TV heartthrob brings an important element of The Bachelor with him – the support of new fiancé Catherine Giudici.

"When they asked me, the first thing I did was call Catherine because I wanted to make sure she was on board and was fully supportive," Lowe tells PEOPLE. "I didn't want her to feel left out. I wanted her to know that she was going to be involved and she's going to be a big part of this with me."

Giudici added that she'll be Lowe's "biggest cheerleader" and is happy to practice with her man.

"I used to take a lot of dance classes and I would like to revisit that, even if it’s with him in a living room. Because I want to see what he’s been practicing! It's exciting," she says.